Hyperolius houyi Ahl, 1931: 101.

Tillack, Frank, Ruiter, Ronald de & Roedel, Mark-Oliver, 2021, A type catalogue of the reed frogs (Amphibia, Anura, Hyperoliidae) in the collection of the Museum fuer Naturkunde Berlin (ZMB) with comments on historical collectors and expeditions, Zoosystematics and Evolution 97 (2), pp. 407-450 : 407

Hyperolius houyi Ahl, 1931: 101.

Holotype.

ZMB 39099, "SW-Ussagara (Neu-Kamerun)" [partly in error, see remarks below], coll. Reinhardt Houy, 29.XI.1911.

Present name.

Hyperolius houyi Ahl, 1931a.

Remarks.

Depicted in Ahl (1931b: 374, fig. 249). The type locality indicated by Ahl (1931a: 102) is misleading and composed of two different regions which are far apart. Houy was a member of the "Lagone-Pama-Expedition 1912-13", which he accompanied as government doctor and zoologist to “Neu-Kamerun”, and several natural history objects from this expedition were sent by him to ZMB. Together with the topographer and First Lieutenant Otto Tiller, he also accompanied the "Expedition ins Zwischenseengebiet in Ostafrika" [region between Lake Kivu and Lake Victoria] in 1911, the expedition directed by the colonial geographer Hans Heinrich Josef Meyer. According to the original label, the holotype of H. houyi was collected on 29 November 1911, at the end of Meyer’s expedition to East Afrika (see also Urban 1917). On the basis of the map showing the expedition route ( Meyer 1913), the corrected type locality for H. houyi has to be “SW-Ussagara” [southern Kilosa District, Morogoro Region, Tanzania].